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HG808 Sereris
The HG808 Series by HENGKO offers a comprehensive line of industrial-grade transmitters designed to deliver accurate, stable, and long-term reliable measurements of temperature, humidity, and dew point across a wide range of challenging environments.
Whether facing extreme heat, high humidity, corrosive gases, or precision monitoring demands, HG808 has a solution built for your application.
| Model | By Application Condition | Key Features |
| 1. Temperature & Humidity Transmitter | ||
| HG808-T | Continuous High-temperature environments (kilns, ovens, flue gas) | – Measures up to 180°C ; – Stainless steel probe ; – Long-term stability |
| HG808-H | High Humidity Areas (cleanrooms, greenhouses, pools) for Continuous High Humidity Environment | – Up to 85-98% RH; – Anti-condensation ; – Strong corrosion resistance -Works stably and accurately in >85% humidity long-term |
| HG808-C | Precision Measurement Applications (labs, pharma, food storage) | – ±1.5%RH Hgh Accuracy; – Stable performance; – Wide temp/RH range |
| HG808-F | Corrosive/ Chemical Environments (pharma, battery plants) | – Anti-acid/alkali design; – IP65 housing ; – Suitable for disinfectants |
| 2. Dew Point Transmitter | ||
| HG808-D | Normal Temperature Environment Dew Point Measurement (dry gas systems, glove boxes) | – Dew point & temp output ; – 4–20mA interface ; – Accurate in dry zones |
| HG808-A | Ultra high temperature + Punkt rosy measurement and moisture-sensitive areas | – Up to 180°C dew point ; – Robust & interference-resistant |
HENGKO offers a broad array of industrial temperature and humidity sensors suitable for various monitoring needs, ranging from stainless steel sensor probes to dew point transmitters and as following 6 kinds of temperature and humidity monitor devices solution. Our focus is on providing accurate, reliable, and long-lasting sensors, making them perfect for a diverse array of applications. Here List our HG808 series, please check details as following.
Corrosion-Resistant Temperature & Humidity Transmitter
Withstands harsh chemical exposure—ideal for pharmaceutical cleanrooms, chemical processing, battery plants, and food-grade environments.
Anti-acid, alkali, disinfectant, and reagent corrosion
Stainless steel housing, IP65 protection, and modular probe design
Accurate RH ±2.5%, Temp ±0.2°C @20°C
HG808 also offers specialized dew point monitoring solutions tailored for challenging industrial environments — including high temperature, high humidity, corrosive conditions, and chemical exposure.
Explore the models below to select the right humidity transmitter for your specific application needs.
Model | Temperature Range (°C) | Humidity Range (% RH) | Dew Point Range (°C) | Temperature Accuracy (Temperature/Humidity/Dew Point) | Special Features | Zastosowania |
HG808-T Series ( High Temperature Transmitter ) | -40 to +200℃ | 0-100%RH | N/A | ±0.1°C (@85℃) / ±2%RH (@20℃, 10-90%RH) | Ultra-high temperature resistant sensing element, 316L stainless steel probe. Maintains good humidity collection performance even at high temperatures between 100°C and 200°C. | Collecting humidity data from high-temperature gases in various applications like furnace kilns, high-temperature ovens, and coking gas pipelines. |
HG808-H Series ( High Humidity Transmitter ) | -40 to +100℃ | 0-100%RH | N/A | ±0.1°C (@20℃) / ±2%RH (@20℃, 10-90%RH) | Features high wet humidity sensing with excellent corrosion resistance. Employs a robust cast aluminum housing and a stainless steel sensor assembly for durability. Maximum humidity range extends up to 98% RH max. (Normal advice 40-95% RH ) | Suitable for use in industrial environments with high humidity levels, particularly in applications with relative humidity ranging from 90% to 100%. |
HG808-C Series ( Precision Transmitter) | -40 to +150℃ | 0-100%RH | N/A | ±0.1°C (@20℃) /± 1.5%RH (@20℃, 10-90%RH) | Provides long-term stable and high-accuracy measurement performance across a wide measurement range (0-100% RH, -40°C to +150°C). Employs high-quality sensors and advanced calibration technology for sustained precision. | Ideal for use in various fields requiring precise measurements, including biopharmaceuticals, precision machinery processing, laboratory research, food processing, and storage. |
HG808-F Series ( NEW) | -40 to +120℃ | 0-100%RH | N/A | ±0.2°C (@20℃) /± 2.5%RH (@20℃, 10-90%RH) | Corrosion-Resistant Temperature & Humidity Transmitter Withstands harsh chemical exposure | ideal for pharmaceutical cleanrooms, chemical processing, battery plants, and food-grade environments. |
HG808-A Series (Ultra High Temp Dew Point Meter) | -80 to +180℃ | N/A | -20 to +100℃ | ±3°C Td | Designed specifically for measuring dew point in high-temperature and dry environments. Features a robust cast aluminum housing and stainless steel sensor assembly for accurate measurements at temperatures up to 190°C. | Ideal for dew point measurement in challenging 190℃ high-temperature and dry environments. |
HG808-D Series (Inline Dew Point Meter) | -40 to +90℃ | N/A | -60 to +90℃ | ±2°C Td | Utilizes a high-quality moisture-sensitive element and advanced calibration techniques to deliver accurate dew point transmitter. Offers consistent ±2°C dew point accuracy within a dew point range of -60°C to +90°C. | Suitable for industrial, non-harsh environments where precise humidity control is crucial. Applicable in areas like lithium battery production, semiconductor applications, and glove boxes for microscopic water detection. |
HG808-G Series ( Inline Dew Point Meter ) | -20 to +60℃ | N/A | -60 to +20℃ | ±3°C Td | Designed to operate in extremely dry environments and measure moisture in gases. Features a dew point range extending down to -40°C, making it suitable for applications requiring strict humidity control. | Measures low dew point values in industrial settings demanding precise humidity management. |
We offer 6 types of probes for the HG808 Humidity Transmitter, with each type available in both A and B versions, providing a total of 12 probes for various application options.
0A#
1A#
3A#
5A#
6A#
8A#
0B#
1B#
3B#
5B#
6B#
8B#
M20 Hexagonal thread stainless steel probe connector
G1/2 Hexagonal thread stainless steel probe connector
NTP1/2 Hexagonal thread stainless steel probe connector
M27 Hexagonal thread stainless steel probe connector
M20 Flange stainless steel probe connector
HENGKO, as a leading factory and OEM provider, offers 6 types of humidity transmitters, sensors, and meters with various probe options. We specialize in delivering the best temperature and humidity monitoring solutions for diverse industrial applications, ensuring reliability and customization to meet specific needs.
HENGKO is a professional supplier in industrial temperature and humidity sensor solutions, with a reputation for unique design and excellent performance.
Our temperature and humidity transmitters and sensors are utilized across various industries, such as food and beverage, pharmaceuticals, manufacturing, and environmental monitoring, delivering reliable and accurate measurements essential for operational success.
You can easy find the best temperature and humidity solutions by HENGKO’s 10 years of technical expertise and comprehensive range of humidity and dew point products for some special industrial monitor conditions.
You will get much lower and competitive price due to our extremely cost-effective control and factory supply and free OEM and ODM Service
You will always meet the ever-changing market needs with our keep-upgrading humidity transmitter products.
You can fully customize unique dew point sensor product based on our patented & self-designed dew point transmitter series.
Otrzymasz silne wsparcie marketingowe, które pomoże Ci skutecznie sprzedawać produkty, materiały pomocnicze obejmują: zdjęcia produktów w wysokiej rozdzielczości, fajne filmy z efektami 3D i wiele więcej.
If you’re keen on collaborating with HENGKO as an Sales Distributor or Agent for our Temperature and Humidity Sensor Products,
we warmly invite you to contact us to discuss the specifics. Many exclusive opportunities await you.
The HG808 series is engineered with robust materials like 316L stainless steel probes and cast aluminum housings, providing high resistance to heat, humidity, and chemical exposure. Models like HG808-T and HG808-A are specifically built for extreme temperatures up to 200°C and dry, high-temperature dew point environments, making them ideal for kilns, ovens, coking gas pipelines, and more.
Yes. The HG808-T series can operate from -40°C to +200°C and is designed with an ultra-high-temperature-resistant sensor. It maintains stable humidity measurements even between 100°C to 200°C. The HG808-A model also performs dew point monitoring up to 180°C, ideal for dry high-temp applications.
These models are widely used in:
Furnace kilns and incinerators
High-temp ovens and drying systems
Steel and chemical processing plants
Gas pipelines for coking or synthesis
Power generation facilities requiring dew point control
Accuracy is a core strength:
HG808-T: ±0.1°C (@85°C), ±2%RH
HG808-A: ±3°C for dew point across -20 to +100°C
This high accuracy ensures precise monitoring, even in dynamic environments.
For environments where the air temperature exceeds 150°C, traditional temperature and humidity sensors often fail due to thermal drift or sensor degradation. The HG808-T Series is specifically engineered for such cases, supporting up to 200°C and equipped with a 316L stainless steel probe that withstands thermal stress and provides stable humidity collection even between 100°C and 200°C.
Typical use cases include:
Industrial kilns (ceramics, steel, glass)
High-temp drying ovens
Flue gas exhaust pipelines in power or chemical plants
In persistently wet or saturated air environments—such as greenhouses, swimming pools, fermentation chambers, or cleanrooms—accuracy and anti-condensation capability are critical. The HG808-H Series is designed with:
A robust stainless steel sensor housing
Anti-condensation coating
High humidity tolerance up to 98% RH
Unlike standard RH sensors that degrade or saturate near 95% RH, the HG808-H provides stable readings in these tough environments.
Dew point is the temperature at which air becomes saturated and condensation begins. In very dry or pressurized gas systems, RH becomes less meaningful and dew point is the key metric.
You should choose dew point transmitters like:
HG808-A Series: for high-temperature and dry applications up to 190°C
HG808-D/G Series: for ultra-low dew point detection (down to -60°C), ideal for:
Glove boxes
Lithium battery production
Semiconductor packaging
Industrial dry air systems
Dew point measurement offers more meaningful, pressure-independent metrics in these scenarios.
Chemical-resistant monitoring is critical in pharmaceutical, chemical processing, and battery manufacturing. The HG808-F Series is built for such use:
Operates at -40 to +120°C and 0–100% RH
Withstands corrosive environments with a chemical-resistant sensor enclosure
Ideal for applications like:
Cleanrooms (ISO 7–9)
Battery production (e.g., lithium or NiMH)
Chemical labs or solvent storage areas
Choose the HG808-C Series for high accuracy and long-term stability:
Accuracy: ±0.1°C, ±1.5% RH
Temperature range: -40°C to +150°C
Idealny dla:
Biopharmaceutical manufacturing
Calibration labs
Food & vaccine storage (requiring 24/7 monitoring)
Semiconductor packaging rooms
The model uses advanced calibration algorithms and low-drift sensors suitable for regulated industries.
HG808-D/G: Inline installation within closed systems like compressed air lines or glove boxes; ideal for low dew point (< -20°C) and precise process control.
HG808-A: External probe, suited for open or semi-open high-temp systems, such as heated drying chambers or hot gas ducts, where dew point indicates dryness or risk of condensation.
In battery plants, drying rooms require both low humidity and corrosion resistance. Recommended options:
HG808-F: For general drying room humidity monitoring with chemical exposure
HG808-D: For inline dew point monitoring, especially in inert gas or vacuum systems
HG808-G: For ultra-dry, low-temp gas streams
Look for dew point range below -20°C and fast response time in these scenarios.
Typically no, as sensors that handle extreme temperatures (like HG808-T, up to 200°C) are not suitable for saturated humidity at those temps. Similarly, high humidity sensors (like HG808-H) are optimized for moderate temperatures up to 100°C.
Recommendation: Evaluate your application priorities—if temperature is extreme, choose HG808-T and disregard RH accuracy. For wet high-humidity use, choose HG808-H and operate within the specified range.
Here are some best practices:
Choose models with industrial-grade sensors (HG808 series uses sensors rated for stability and drift resistance)
Ensure proper shielding or enclosures if exposed to corrosive vapors or condensation
Plan for annual recalibration in regulated environments (e.g., pharma or food industries)
Use RS485/Modbus integration for remote diagnostics and maintenance
Yes. HENGKO supports full OEM customization, including:
Custom sensor probe lengths (up to 1 meter)
Threaded or flanged mounts
Custom output signals
Enhanced IP67/IP65-rated housings
Special calibration ranges or field-specific enclosures
These are often required for system integrators or equipment manufacturers in HVAC, gas analysis, or automation industries.
Skontaktuj się z HENGKO już dziś, aby uzyskać odpowiedzi na wszelkie pytania dotyczące czujników temperatury i wilgotności, przetworników i rozwiązań.
W wymagającym środowisku przemysłu papierniczego, wysoka wilgotność jest nie tylko powszechna - to
Wprowadzenie W bardzo wrażliwym świecie produkcji półprzewodników, gdzie nawet niewielkie wahania środowiskowe
We współczesnej erze postępu technologicznego zapotrzebowanie na akumulatory - zwłaszcza litowo-jonowe - gwałtownie wzrosło. Te
Wprowadzenie Czujniki temperatury i wilgotności odgrywają kluczową rolę w różnych branżach, w tym w monitorowaniu środowiska,
Wprowadzenie Obudowa czujnika jest niezbędna do ochrony czujników przed czynnikami środowiskowymi, takimi jak wilgoć, kurz i pył.
Skontaktuj się z naszym zespołem ekspertów, aby uzyskać spersonalizowaną pomoc, a my niezwłocznie dostarczymy najlepsze rozwiązania w zakresie przetworników i czujników temperatury i wilgotności dostosowane do Twoich konkretnych potrzeb.
Let us tell you why you should choose a dew point transmitter
from HENGKO
Odpowiedź jest prosta: HENGKO jest inne.
W wymagającym środowisku przemysłu papierniczego wysoka wilgotność jest nie tylko powszechna - jest nieunikniona. Począwszy od etapu roztwarzania, poprzez proces suszenia i
W wymagającym środowisku przemysłu papierniczego, wysokie
Wprowadzenie W wysoce wrażliwym świecie produkcji półprzewodników, gdzie
We współczesnej erze postępu technologicznego zapotrzebowanie na
HENGKO jest wiodącym dostawcą rozwiązań do monitorowania temperatury i wilgotności dla różnych gałęzi przemysłu, specjalizującym się w produkcji zaawansowanych przetworników i czujników temperatury i wilgotności.
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